| 摘要 |
An oxidation process for regeneration and closed loop recycling of cleaning solutions contaminated with used surfactants, fats, oils, greases, and inorganic and organic contaminants converts the contaminated cleaning solution into a reusable cleaning solution containing useful polar water soluble surfactants, detergents, wetting agents and emulsifiers. The contaminated cleaning solution is mixed with a stoichiometrically limited amount of an ozone containing gas. The reaction with ozone containing gas is carried out in a mixed vapor state (a gas/liquid mist). Fats, oils, greases and organic contaminants are converted into useful polar water soluble surfactants, detergents, wetting agents and emulsifiers. The regenerated cleaning solution has a cleaning strength at least as great as the strength of the original cleaning solution prior to contamination. The regenerated cleaning solution is reused as the cleaning solution in the original cleaning process from which the contaminated cleaner was obtained. The rinse water in the cleaning process becomes contaminated with dilute reused regenerated cleaning solution and is recycled by reverse osmosis to separate the rinse water and reconcentrate the reused cleaning solution. The reconcentrated reused cleaning solution is returned to the original cleaning process for reuse and the reverse osmosis product water is returned to the original rinse station for reuse.
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